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| 型號： | ADT7463 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | dB COOL Remote Thermal Controller and Voltage Monitor |
| 中文描述： | 分貝超酷的遠程熱控制器和電壓監(jiān)視器 |
| 文件頁數(shù)： | 34/53頁 |
| 文件大小： | 719K |
| 代理商： | ADT7463 |
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REV. 0
–34–
ADT7463
Table X. Register 0x36 – Dynamic T
MIN
Control Register 1 (Power-On Default = 0x00)
Bit
Name R/W
Description
<0>
CYR2
Read/Write
MSB of 3-Bit Remote 2 Cycle Value. The other two bits of the code reside in Dynamic T
MIN
Control Register 2 (Reg. 0x37). These three bits define the delay time between making sub-
sequent T
MIN
adjustments in the control loop, in terms of number of monitoring cycles.
The system will have associated thermal time constants that need to be found to optimize
the response of fans and the control loop.
<1>
V
CCP
LO
Read/Write
V
CCP
LO = 1. When the power is supplied from 3.3VSTANDBY and the core voltage
(V
CCP
) drops below its V
CCP
low limit value (Reg. 0x46), the following occurs:
Status bit 1 in Status Register 1 gets set.
SMBALERT
gets generated if enabled.
PROCHOT
monitoring is disabled.
Dynamic T
MIN
control is disabled.
The device is prevented from entering shutdown.
Everything re-enabled once V
CCP
increases above V
CCP
low limit.
<2>
PHTR1
Read/Write
PHTR1 = 1 copies the Remote 1 current temperature to the Remote 1 Operating Point
Register if
THERM
gets asserted. The operating point will contain the temperature at
which
THERM
is asserted. This allows the system to run as quietly as possible without
system performance being affected. PHTR1 = 0 ignores any
THERM
assertions on the
THERM
pin. The Remote 1 Operating Point Register will reflect its programmed value.
<3>
PHTL
Read/Write
PHTL = 1 copies the local channel’s current temperature to the Local Operating Point
Register if
THERM
gets asserted. The operating point will contain the temperature at
which
THERM
is asserted. This allows the system to run as quietly as possible without
system performance being affected. PHTL = 0 ignores any
THERM
assertions on the
THERM
pin. The Local Temp Operating Point Register will reflect its programmed value
.
<4>
PHTR2
Read/Write
PHTR2 = 1 copies the Remote 2 current temperature to the Remote 2 Operating Point
Register if
THERM
gets asserted. The operating point will contain the temperature at
which
THERM
is asserted. This allows the system to run as quietly as possible without
system performance being affected. PHTR2 = 0 ignores any
THERM
assertions on the
THERM
pin. The Remote 2 Operating Point Register will reflect its programmed value.
<5>
R1T
Read/Write
R1T = 1 enables
dynamic
T
MIN
control on the Remote 1
Temperature channel. The
chosen T
MIN
value will be dynamically adjusted based on the current temperature, oper-
ating point, and high and low limits for this zone. R1T = 0 disables dynamic T
MIN
con-
trol. The T
MIN
value chosen will not be adjusted and the channel will behave as described
in the Automatic Fan Control section.
<6>
LT
Read/Write
LT = 1 enables dynamic T
MIN
control on the Local Temperature channel. The chosen
T
MIN
value will be dynamically adjusted based on the current temperature, operating
point, and high and low limits for this zone. LT = 0 disables dynamic T
MIN
control. The
T
MIN
value chosen will not be adjusted and the channel will behave as described in the
Automatic Fan Control section.
<7>
R2T
Read/Write
R2T = 1 enables dynamic T
MIN
control on the Remote 2 Temperature channel. The
chosen T
MIN
value will be dynamically adjusted based on the current temperature,
operating point, and high and low limits for this zone. R2T = 0 disables dynamic T
MIN
control. The T
MIN
value chosen will not be adjusted and the channel will behave as
described in the Automatic Fan Control section.
*
This register becomes read-only when the Configuration Register 1 Lock bit is set to 1. Any subsequent attempts to write to this register will fail.
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